Hay-press.



1. D A|N. HAY PRESS.

APPLICATION FILED JULY IL 1914.

3 SHEETS-SHEET 1.

14,147,710. Patented July 27, 1915.

Wfmaaszs; 8W

J. DAIN.

HAY PRESS.

APPLICATION FILED JULY 11, 1914. 1,147,710. Patented July 27, 1915.

' 3 SHEETSSHEET 3.

' 10 Irg. I

Wifnassae I V Iqvznlur: Q M Q 1 i gflfcarnzzrsg COLUMBIA PLANOGRAPH c0, WASHINGTON, D. c.

entree srerns rarnn'r oration.

JOSEPI-IYDAIN, or MOLINE, ILLINOIS, Assie'Non TO DAIN MANUFAo'rURmG COMPANY or IOWA, or OTTUMWA, IOWA, A'CORPORATION' on Iowa.

HAY-PRESS.

Specification of Letters Patent. Patented July 2'7, 1915.

Application filed July 11, 1914. Serial No. 850,453.

To all whom it may concern: Be it known that'I, JOSEPH DnIN, a citlzen of the United States, and a resident of Mo- 'line, inthe county of Rock Islandand State of Illinois, have invented certain new and useful Improvements in Hay-Presses, of which the following is a specificat on, reference being had to the accompanying draw s My invention relates to hay presses of the gear-driven type, and has particularly to do with pressesin which the plunger 1s operated by a drive-gear, or palr of gears, eccentrically mounted and driven from a suitable source of powerbv a single reducing pinion, or pair of reducing pinions, in such manner as to reduce the speed and thereby increase the power of the'plunger during the compression stroke and to 1ncrease the speed of the lunger on the. return stroke. An example of this general type of press is shownand described 1n my pending application Serial No. 21,354, filed September 20, 1912. In the latter press the eccentrically-mounted driving gearsa pair of which is provided in order to equalize the strainare mounted in fixed bearings, and the pinions by which power is communicated to them from the source of power, which is preferably an internal combustion motor mounted on the frame of the press, are mounted in bearings carried by a support which swings to compensate for the eccentricity 0f the driving gears. These pinions are driven by means ofa pulley and belts operated by themotor, and it is necessary to provide means to maintain the proper tension on the beltsgas the pinions swing back and forth.

My present invention has for one of 1ts objects to provide a construction in which the driving pinions will be mounted in stationary bearings, thus avoiding the necessity .of employing variable means for maintaining thetension of the belts.

Another object is to relieve the eccentric gear bearings from the pressure of the plunger on its operativestroke.

A further object is to provide certain 1mprovements in the construction of presses of this character, as hereinafter set forth.

I accomplish these objects as illustrated in the drawings and as hereinafter described. That which I believe to be new will be set forth in the claims. r

In' the accompanying drawings, Figure l is. a side elevation of the principal parts of my improved hay press; Fig. an an enlarged detail, being a partial longitudinal section of the'driving, mechanism and. some of the connected parts, said sectlon being taken on line 22 of Figs. 4 and 5,; Fig. 8

is a similar view, being a partial longitudinal vertical section on line 3-3 of Fig. 5; Fig. 4 is a plan view of the parts shown in Fig. 2; Fig. 5 is a partial horizontal section on line 55 of Fig. 2; Fig. 6 is a detail, be-

' ing a perspective view illustrating oneof the shoes which control the reciprocatory movement of the eccentric drive-gears, and the bracket which supports it; and Fig.:7"is'an enlarged detail, being apartial plan view illustrating the manner in. which the eccen-' ll indicates an internal combustion motor suitably mounted on the frame of the press, near one end thereof, and operating to drive pulleys 12 from which the compression mechanism is actuated. l 1? indicates the usual fly-wheels. y

'14: indicates a driveshaft, which is mounted in suitable bearings carried by plates 15 secured to the frame" of'the press, as shown in Fig. 1, said bearings being fixedly mounted The shaft 1%1 carries-pulleys 16, which are driven from the pulleys 12 by belts 17, as shown in Figs. 1', 4 and 5.

18 indicates pinions mounted on the shaft 14 andkeyed theretoso asto rotatetherewith.

19 indicates a pair of drive-gears which mesh with the pinions 18 and are provided with eccentricallyrdisposed axes 20 mounted in bearings 21 carried'by bearing-plates 22 mounted at opposite sides of the press frame,

tion, and in order to hold them properly in position and to facilitate their reciprocatory movement, each plate 22 has associated with it a plate 23 disposed at the opposite side of the members of the press frame 8. The plates 2223 are held a fixed distance apart by spreaders 24 and may be freely reciprocated between the pairs of angle-irons composing the press frame, the outwardlyprojecting limb of the angle-irons forming ledges or supporting bearings for the plates 22 and upon which they move.

In order to hold the gear axes 2O properly in position in their respective bearings, the hub of each gear 19 is provided with an annular flange 25 which abuts against the inner face of the appropriate bearing 21, as shown in Fig. 5, and on the outer face of each gear axis 20 is provided a plate 26 which is secured to the axis 20 by a bolt 27 the inner end of which is hooked into a perforated lug 28, as illustrated in Fig. 5. Thus the axes 20 cannot become displaced, but may readily be removed by removing the nuts on the bolts 27 and disconnecting the plates 26.

Each of the gears 19 is provided with an annular flange 29 disposed laterally with reference to the toothed portion of its periphery, as best shown in Fig. 5, this flange forming ,an annular shoulder or rail which transmits the end thrust of the plunger to suitable rollers 30 mounted on the driveshaft 14:, as best shown in Fig. 5. Thus the compression strain is not sustained by the bearings of the eccentrically-mounted drivegears, but is sustained by the rollers 30 and through them is transmitted to the bearings of the drive-shaft 14.

31 indicates steel plates which are fitted to those portions of the gears 19 which bear upon the rollers 30 during the compression stroke of the press. These plates are provided at the points on the flanges 29 where the greatest compression strain occurs, so that it will be unnecessary to renew the entire gears on account of wear, but they may be restored to their original condition by simply renewing the wearing plates 31 as occasion requires.

32 indicates the plunger or pitman by which the hay is compressed in the compression chamber, said plunger having an operating head 33, as shown in Fig. 3. The plunger extends back between the eccentrically-mounted drive-gears 19 and is con nected to a wrist-pin 34 pivotally connected with said drive-gears in such manner that the plunger will be operated with the greatest power and at the slowest speed on the compression stroke and with the greatest speed and the least power on the return stroke, as illustrated in Fig. 2.

Owing to the eccentric mounting of the drive-gears 19 and the fact that the driveshaft 14; is mounted in stationary bearings, it will be apparent that in order to maintain the drive-gears 19 in mesh with the pinions 18 the bearings of said drive-gears must be reciprocated as the gears rotate and that means must be provided for holding said gears in mesh with the pinions 18. To this end I provide curved shoes 35 which are preferably made of angle-iron, as shown in Fig. 6, and are adapted to bear on the inner P are adjustably connected with the brackets 37 by bolts 39 fitted in slots d0 in the brackets 37 so that the shoes may be adjusted to compensate for wear. It will be evident from the foregoing that the shoes 35 will constantly hold the gears 19 in mesh with the pinions 18 and consequently will cause the axes 20 of said gears and the bearings in which they are mountedto reciprocate in the frame of the press to allow for the maintenance of such engagement of the gears. Of 9 course, when the bearings 21 move toward the compression chamber, which occurs on the compressing stroke of the plunger, the shoes 35 are idle as far as performing any function is concerned, but on the return stroke of the plunger said shoes act to pull the bearings 21' to the right as the gears 19 rotate. This, however, does not impose much strain on the shoes as it occurs on the idle stroke of the plunger, as above stated. As the compression strain is transmitted through the structure of the drive-gears to the rollers 30 and is not sustained by the axes or bearings of said drive-gears, there is very little wear on such bearings. The shoes 35 may readily be removed and renewed by simply disconnecting the bolts 39.

It will be noted that as the axes of the drive-gears 19 move toward the compression chamber on the compressing stroke of the plunger, the desired length of plunger stroke may be secured with the wrist-pin 3 L comparatively close to the axes of the gears, thereby gaining an increased leverage of the drive-gears upon the plunger. A further advantage of mounting the wrist-pin near the axis of the gears is that there is less angularity of the pitman. when the pitman is traveling over the axis on the compression stroke, since by my present construction the 1 so that it is automatically operated'i'n the usual way.

So far as I am aware, Iam the first in the art to operate a plunger by connecting it with gears mounted. eocentrically,-the aXes of which are arranged to reciprocate toward and from the compression chamber; also to operate such gearsby pinions mounted on stationary bearings; and also to provide rollers arranged to take the end-thrust of the compression. These features, therefore, are claimed broadly.

That which I claim as my invention, and desire to secure by Letters Patent, is,

1. A press, comprising a compression chamber, a plunger, an eccentrically-mounted gear connected with said plunger for operating the same, a bearing for said gear movable toward and from the compression chamber, and means for rotating said gear and simultaneously moving it toward and from the compression chamber.

2. A press, comprising a plunger, an eccentrically-mounted rotary drive-gear connected with the plunger and mounted in movable bearings, and means for rotating said drive-gear. I

3. A press, comprising a plunger, an eccentrically-mounted rotary drive-gear connected with the plunger and mounted in movable bearings, and a pinion mounted on stationary bearings for rotating said drivegear.

4. A press, comprising a plunger, an eccentrically-mounted rotary gear connected with said plunger, reciprocating bearings for said drive-gear, and means for rotating said gear.

5. A press, comprising a plunger, an ec-' centrically-mounted rotary gear connected with said plunger, reciprocating bearings for said drive-gear, and means for rotating and reciprocating said gear.

6. A press, comprising a plunger, an eccentrically-mounted gear connected with said plunger, reciprocating bearings for said drive-gear, and a pinion mounted in stationary bearings and meshing with said drive-gear for rotating the same.

7 A press, comprising a plunger, an eccentrically-mounted gear connected with said plunger, reciprocating bearings for gear, and api'nion. mountedon said driveshaft and meshing with said gear for rotating the same. e 9. A press, comprising a plunger, an ec centrically-mounted drive-gear connected with said'plunger and adapted to rec1procate therewithya stationary shaft, a pinion mounted on said shaft and meshing with said gear, means for reciprocating the drive-' gear, a pulley mounted 011 said shaft, and

a belt for driving said pulley.

10. A press, comprising a plunger, aneccentrically-mounted drive gear connected with said plunger, means for rotating said gear, and a thrust-bearing cooperating with said gear to takethe compression thrust.

11. A press, comprising a plunger, an eccentrically-mounted drive-gear connected with said plunger, and a roller bearing against an annular portion of said gear and arranged to take the compression thrust thereof. i

12. A press, comprising a plunger, an e0.- centrically-mounted drive-gear, a pinion meshing with said gear for rotating the same, and a roller bearing against an annular portion of said gear for taking the compression thrust thereof. H

13. A press, comprising a plunger, an eccentrically-mounted gear connected with said plunger, said gear being adapted to reciprocate with the plunger, a stationary shaft, a pinion mounted on said shaft for driving said gear, and a roller mounted on said shaft and bearing againstan annular portion of said gear for taking the compression thrust thereof.

14. A press, comprising a plunger, an eccentrically-mounted gear connected with said plunger, said gear being adapted to reciprocate with the plunger, a stationary shaft, a pinion mounted on said shaft for Z R (1'0 ermoune on for driving Stld gear, a 11 t d said shaft and bearing against an annular portion of said gear for taking the compression thrust thereof, and a shoe mounted on said shaft and engaging an annular portion of said gear for holding said gear in mesh with said pinion.

16. A press, comprising a plunger, aneccentrically-mounted' gear connected with said plunger, said gear being adapted to reciprocate with the plunger, a stationary shaft, a pinion mounted on said shaft for driving said gear, and a shoe mounted on ger, an eccentrica11y-mounted gear connected with said plunger for reciprocating the same, reclprocatlng bearings for said gear mounted in said frame, a shaft mounted 1n stationary bearings, a pinion mounted on said shaft and meshing with said gear, and 19 means connected With said shaft for holdin; said pinion in mesh with said gear.

JOSEPH DAIN.

v Witnesses:

JEssIE SIMsEn,

V. G. DUFFIELD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

